HELIX D ONE 1-Channel Subwoofer Amplifier with Integrated Active Crossover

Helix Amplify 201 Direct Subwoofer Amp DSP Input Mono Sub Amplifier 750w RMS

Audio System CO-650.1 - 1-Kanal Verstärker

HELIX M ONE X Car Audio Mono Sub Subwoofer Amplifier 1030w RMS at 1 ohm

HELIX M ONE Car Audio Mono Sub Subwoofer Amplifier 600w RMS at 1 ohm

DLS PS1.500 Slim Mono Amplifier 500W RMS Class D Car Sub Amp

Match UP 1FX Car Audio Mono Sub Subwoofer Amplifier 900w RMS at 1 ohm

Kicker 46CXA400.1 Amp 1 Channel Mono Subwoofer Car Amplifier up to 400w RMS